I'm working on mat slab supported only on piles using staad foundation advanced v 8.00.00.00. I'm new to the program so i'm currently working through the nuances of the program (such as the need to remesh when you change a load) and how to get understandable output. However, i'm having a rather difficult time with saving and it keeping several inputs including grid spacing and removed items from the model (such as column foundations that were previously removed. Is there a reason why the grid doesn't save and that foundations that were previously removed continue to come back?